建平地区色木槭天然更新主导因子的研究

Dominant Factors of Natural Regenerated Acer monoin Jianping Area

对影响建平地区色木槭林分天然更新幼树(苗)株数和高生长主导因子进行了调查研究,结果表明:(1)各因素对更新幼树(苗)株数影响大小依次为:坡向>郁闭度>坡位>土层厚度,表明影响色木槭更新株数的主导因子是水分条件和光照;(2)对更新幼树(苗)高生长的影响因子排序为:坡向>坡位>郁闭度>土层厚度,表明水分和养分条件是影响色木槭更新幼树高生长关键因子。

The dominant factors of influencing numbers and height growth of natural regenerated young saplings (seedlings)of Acermono in Jianping Area were investigated.Result shows that 1)the descending order of the fac-tors influencing the numbers of regenerated saplings (seedlings)is aspect>canopy density>slope position>soil thickness,indicating that the main factor affecting the number of regeneration of Acer mono is moisture and light;2)the descending order of the factors influencing the height growth of regenerated saplings (seedlings)is aspect>slope position> canopy density >soil thickness,this shows that water and nutrient are key factors affecting the height growth of young trees of Acer mono.